ENERGY STAR® is the government-backed symbol for energy efficiency, providing simple, credible, and unbiased information that consumers and businesses rely on to make well-informed decisions. ENERGY STAR is the simple choice for energy efficiency, making it easy for consumers and businesses to purchase products that save them money and protect the environment. ENERGY STAR HP Z400, 2,66 GHz, Intel® Xeon® 3000 Sequence, W3520, 4 GB, Windows 7 Professional, 32-bit HP Z400. Frequência do processador: 2,66 GHz, Família de processador: Intel® Xeon® 3000 Sequence, Modelo de processador: W3520. Capacidade da memória incorporada: 4 GB, Tipo de memória interna: DDR3-SDRAM, Velocidade do clock de memória: 1333 MHz. Sistema operativo instalado: Windows 7 Professional, Arquitetura de sistema operacional: 32-bit. Alimentação: 475 W. Tipo de produto: Workstation